Apple publishes a breakdown that makes it apparent how much the company works with China.

In 2022, of all app store takedowns requested by government, Apple literally complied with China 1435 times, which represented 97.3% of all requests worldwide.

Apps removed from the App Store subject to government takedown demands 1474

By country or region • China mainland: 1435 • India: 14 • Pakistan: 10 • Russia: 7 • Türkiye: 2 • Bulgaria: 1 • Cyprus: 1 • Hong Kong: 1 • Italy: 1 • Latvia: 1 • Nigeria: 1

They did this to Damus for example, when it listed. It's probably one of the easiest ways China can enforce a ringfenced Internet besides adding IP addresses to the Great Firewall. One of the reasons BTC/Nostr can be resilient is plenty of non-app store options to access. Also a good reminder that app store configuration/choice is a vital part of making technologies anti-censorship resilient.